Sylvia Young Theatre School

Odyssey Studios was a recording studio based near Marble Arch in London and opened in 1979. It was set up by Wayne Bickerton as an extension of State Records, the label he had set up with Tony Waddington and John Fruin in 1975. The studio closed in 1989 and the building was subsequently sold to Jazz FM.

Nutford House is a university hall of residence in London, located on the corner of Nutford Place and Brown Street, near Marble Arch in the City of Westminster.It was built in 1916 and was acquired by the University of London in 1949, after which it was expanded to take in five terraced houses in Brown Street, known as the Annexe and one house in Seymour Place. Accommodation is provided for 223 men and women students in 181 single and 21 twin rooms.Nutford House has a total of 181 single rooms, and 21 shared rooms across the main hall, annexe and Seymour Place. The warden for many years was the sole surviving relative of Howard Carter (archaeologist), the discoverer of Tutankhamun's tomb and signed the death certificate (last seen on display at the 1992 British Museum's exhibit of Howard Carter's career before Tutankhamun). The residence is split into 3 separate accommodations: Main Hall, The Annexe and Seymour. Residents in Seymour Place only have access to laundry facilities and common areas in the main or annex buildings. The House has 2 common rooms in the main building, one of which is a TV room and the other a JCR (Junior Common Room) with a piano. There is no Senior Common Room. There is, however, a music room in the annex. The annex also houses a games room with darts, foosball table, and TV.

Smooth London is a regional radio station owned and operated by Global as part of the Smooth Radio network. It broadcasts to the Greater London area from Croydon transmitting station on 102.2 MHz. It broadcasts a soft adult contemporary radio format from Global's studios in Leicester Square, London, and replaced 102.2 Smooth FM on 26 March 2007.

Seymour Place is a street in Marylebone in Central London. Located in the City of Westminster, it runs north from Seymour Street until it meets Marylebone Road, where it becomes Lisson Grove. It is crossed by Crawford Street, George Street, and York Street and runs parallel to Gloucester Place, which lies to its east. Its southern end is about 180 metres northwest of Marble Arch and about 40 metres east of Edgware Road. Seymour Place was created when the former Portman Estate was redeveloped into a largely grid-like residential pattern in the eighteenth century to accommodate the growing population of London. Along with Seymour Street, Seymour Place is named for Anne Seymour, the mother of Henry Portman, who redeveloped the area. From 1849 to 1952, the Gothic St Luke's Church stood the street and the adjoining Nutford Place; the church, which was badly damaged during the Second World War, now houses the Sylvia Young Theatre School. The northern end of the street was formerly named Stingo Lane, after the Yorkshire Stingo public house, until it was demolished and rebuilt in 1872 as an extension of the existing Seymour Place. In 1866, a pioneering female doctor, Elizabeth Garrett Anderson, opened St Mary's Dispensary in the street. From 1896 to 1961, the Marylebone Police Court was at 163 Seymour Place; this was near the county court on the corner of Seymour Place and Marylebone Road, and in 1961 the police court was closed and moved next door to the County Court.The house of Emma Cons, a Victorian social reformer, stands in Seymour Street and bears a blue plaque.The Rwandan High Commission stands in the street. The Seymour Place swimming baths were designed by Alfred Cross in 1931 for Marylebone Council and today are known as Seymour Leisure Centre or Seymour Hall. The place was refurbished in 2018.

The West London Synagogue of British Jews, abbreviated WLS (Hebrew: ק"ק שער ציון, Kahal Kadosh Sha'ar Tziyon, "Holy Congregation Gate of Zion"), is a synagogue and congregation, affiliated to Reform Judaism, near Marble Arch in central London. It was established on 15 April 1840. The current synagogue building in Upper Berkeley Street, dedicated in 1870, is Grade II listed. It is one of the oldest synagogues in the United Kingdom and is the oldest house of prayer affiliated with the Movement for Reform Judaism.

Bryanston Square is an 800-by-200-foot (244 by 61 m) garden square in Marylebone, London. Terraced buildings surround it — often merged, converted or sub-divided, some of which remain residential. The southern end has the William Pitt Byrne memorial fountain. Next to both ends are cycle parking spaces. The most notable merger is the Swiss Embassy at the north-east end. The square's narrow ends are broken by broad approach streets of the same British Regency date. More recent style flanks the mid-west range of the square in the form of №s 31, 32 and 33 which are three times an ordinary range of its widths, meaning the numbering scheme today skips ten following numbers, destroyed to make room for these, to culminate with №s 44 to 50 and the highest-numbered buildings of Great Cumberland Place – its corner houses, №s 63 and 68. That street, this square and Wyndham Place run broad and straight for 750 metres without building projections between an 1821-built church and Marble Arch, moved to its permanent site in 1851. Traffic circulates clockwise around the square and numbering runs anti-clockwise.

Hampden Gurney C of E School is a top ten state primary school based in Marylebone, London.

The High Commission of Tonga in London is the diplomatic mission of Tonga in the United Kingdom. Tonga and the United Kingdom established diplomatic relations in June 1970 after the Treaty of Friendship and Tonga's protection status ended.The Tongan High Commission is located on 36 Moyneux Street in Marylebone, London.

Nemo Studios was a recording studio in London, planned, built and used by Greek composer Vangelis between 1975 and 1987. Numerous highlights of Vangelis' career were composed in Nemo, including soundtracks for Ridley Scott's Blade Runner, and Hugh Hudson's Chariots of Fire (the soundtrack for which he won an Oscar). Vangelis' equipment included more than 20 synthesizers and acoustic keyboard instruments, as well as numerous percussion instruments. The studio was located on the second floor of the former Hampden Gurney school building, near Marble Arch. The building no longer exists.

The Embassy of Switzerland (German: Schweizerische Botschaft im Vereinigten Königreich, French: Ambassade de Suisse au Royaume-Uni, Italian: Ambasciata di Svizzera nel Regno Unito) in London is the diplomatic mission of Switzerland in the United Kingdom. It consists of a large nineteenth-century building with a modern addition and is located halfway between Montagu Square and Bryanston Square. There is a commemorative stone at the entrance to the embassy marking its rebuilding in 1970.

The Portman Estate, covering 110 acres of Marylebone in London’s West End, was founded in 1532 when the land was first leased to Sir William Portman.The Portman Estate also has two rural estates in Buckinghamshire and Herefordshire. In addition to its core landlord operation, The Portman Estate runs The Portman Foundation, a charitable trust which supports charities and other causes which are located in or benefit the Marylebone area.

The New Cavendish Club was a London private members' club, run along the lines of a traditional gentlemen's club, although it had been founded as a Ladies-only club. It was located at 44-48 Great Cumberland Place in the Marylebone district.